Journal article

Measurement of azimuthal asymmetries with respect to both beam charge and transverse target polarization in exclusive electroproduction of real photons


Authors listAirapetian, A.; Akopov, N.; Akopov, Z.; Andrus, A.; Aschenauer, E. C.; Augustyniak, W.; Avakian, R.; Avetissian, A.; Avetisyan, E.; Barion, L.; Belostotski, S.; Bianchi, N.; Blok, H. P.; Boettcher, H.; Bonomo, C.; Borissov, A.; Bruell, A.; Bryzgalov, V.; Burns, J.; Capiluppi, M.; Capitani, G. P.; Cisbani, E.; Ciullo, G.; Contalbrigo, M.; Dalpiaz, P. F.; Deconinck, W.; De Leo, R.; Demey, M.; De Nardo, L.; De Sanctis, E.; Diefenthaler, M.; Di Nezza, P.; Dreschler, J.; Dueren, M.; Ehrenfried, M.; Elbakian, G.; Ellinghaus, F.; Elschenbroich, U.; Fabbri, R.; Fantoni, A.; Felawka, L.; Frullani, S.; Funel, A.; Gabbert, D.; Gapienko, G.; Gapienko, V.; Garibaldi, F.; Gavrilov, G.; Gharibyan, V.; Giordano, F.; Gliske, S.; Guler, H.; Hadjidakis, C.; Hasch, D.; Hasegawa, T.; Hill, G.; Hillenbrand, A.; Hoek, M.; Holler, Y.; Hristova, I.; Iarygin, G.; Imazu, Y.; Ivanilov, A.; Izotov, A.; Jackson, H. E.; Jgoun, A.; Joosten, S.; Kaiser, R.; Keri, T.; Kinney, E.; Kisselev, A.; Kopytin, M.; Korotkov, V.; Kozlov, V.; Kravchenko, P.; Krivokhijine, V. G.; Lagamba, L.; Lamb, R.; Lapikas, L.; Lehmann, I.; Lenisa, P.; Linden-Levy, L. A.; Lorenzon, W.; Lu, S.; Lu, X.; Ma, B. -Q.; Mahon, D.; Maiheu, B.; Makins, N. C. R.; Mao, Y.; Marianski, B.; Marukyan, H.; Miller, C. A.; Miyachi, Y.; Muccifora, V.; Murray, M.; Mussgiller, A.; Nagaitsev, A.; Nappi, E.; Naryshkin, Y.; Nass, A.; Negodaev, M.; Nowak, W. -D.; Osborne, A.; Pappalardo, L. L.; Perez-Benito, R.; Pickert, N.; Raithel, M.; Reimer, P. E.; Reischl, A.; Reolon, A. R.; Riedl, C.; Rith, K.; Rock, S. E.; Rosner, G.; Rostomyan, A.; Rubacek, L.; Rubin, J.; Ruiz, A. L.; Ryckbosch, D.; Salomatin, Y.; Sanjiev, I.; Schaefer, A.; Schnell, G.; Schueler, K. P.; Seitz, B.; Shearer, C.; Shibata, T. -A.; Shutov, V.; Stancari, M.; Statera, M.; Steffens, E.; Steijger, J. J. M.; Stenzel, H.; Stewart, J.; Stinzing, F.; Tait, P.; Taroian, S.; Terkulov, A.; Trzcinski, A.; Tytgat, M.; Vandenbroucke, A.; van der Nat, P. B.; van der Steenhoven, G.; Van Haarlem, Y.; Van Hulse, C.; Varanda, M.; Veretennikov, D.; Vikhrov, V.; Vilardi, I.; Vogel, C.; Wang, S.; Yaschenko, S.; Ye, H.; Ye, Z.; Yen, S.; Yu, W.; Zeiler, D.; Zihlmann, B.; Zupranski, P.

Publication year2008

JournalJournal of High Energy Physics

Issue number6

ISSN1029-8479

DOI Linkhttps://doi.org/10.1088/1126-6708/2008/06/066

PublisherSpringer


Abstract
Azimuthal asymmetries in exclusive electroproduction of real photons are measured for the first time with respect to transverse target polarisation, providing new constraints on Generalized Parton Distributions. From the same data set on a hydrogen target, new results for the beam-charge asymmetry are also extracted with better precision than those previously reported. By comparing model calculations with measured asymmetries attributed to the interference between the deeply virtual Compton scattering and Bethe-Heitler processes, a model-dependent constraint is obtained on the total angular momenta carried by up and down quarks in the nucleon.



Citation Styles

Harvard Citation styleAirapetian, A., Akopov, N., Akopov, Z., Andrus, A., Aschenauer, E., Augustyniak, W., et al. (2008) Measurement of azimuthal asymmetries with respect to both beam charge and transverse target polarization in exclusive electroproduction of real photons, Journal of High Energy Physics(6), Article 066. https://doi.org/10.1088/1126-6708/2008/06/066

APA Citation styleAirapetian, A., Akopov, N., Akopov, Z., Andrus, A., Aschenauer, E., Augustyniak, W., Avakian, R., Avetissian, A., Avetisyan, E., Barion, L., Belostotski, S., Bianchi, N., Blok, H., Boettcher, H., Bonomo, C., Borissov, A., Bruell, A., Bryzgalov, V., Burns, J., ...Zupranski, P. (2008). Measurement of azimuthal asymmetries with respect to both beam charge and transverse target polarization in exclusive electroproduction of real photons. Journal of High Energy Physics(6), Article 066. https://doi.org/10.1088/1126-6708/2008/06/066



Keywords


GENERALIZED PARTON DISTRIBUTIONSlepton-nucleon scatteringNUCLEONVIRTUAL COMPTON-SCATTERING

Last updated on 2025-02-04 at 03:31